Threema in Mac

Hi, has anybody an idea how a messenger app like Threema can be made available on a Mac? Threema is a highly secured alternative for WhatsApp (iiihhhh!!) and gets rapidly tons of new users (after the facebook deal)

Best way would be to contact the developers and ask them to make a version for the Mac.

I have to point out that Messages, which is already on your Mac and iOS, is encrypted and works great with a number of other chat networks and can also send iMessages to iDevice users and SMS to those less fortunate.